Apparatus for and process of laying paving material.



W. BAYLEY.

APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

APPLICATION FILED APR.5, 1909 992,538. Patented May 16,1911.

8 SHEET 1' 1 a as sf l ia a3 K4 K3 WITNESSES: IN VEN TOR A TTORNE Y W. BAYLEY.

APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

APPLICATION FILED APR. 5. 1909.

Patented May 16, 1911.

8 SHEETS-SHEET 2.

H I h. 6 3 do an W" V .H fi E 1 A 5 4 m 0 A u 1 A? m I i M F 3 e. ||I| IN VENTOR WITNESSES:

A TTORNE Y W.-BAYLEY.

APPARATUS FOR AND PROGESS 0P LAYING PAVING MATERIAL.

APPLICATION FILED APR. 5. 1909.

Patented May 16, 1911.

8 SHEETS-SHEETB.

ATTORNEY W. BAYLEY.

APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL. APPLICATION FILED APR. 5. 1909.

8 SHEETSS HEET 4.

WITNESSES;

MW INVEN TOR A TTORNE Y W. BAYLEY.

APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

APPLICATION FILED APR. 5. 1909.

Patented May 16, 1911.

8 SHEETSSHEET 5.

WITNESSES:

IN VEN TOR A TTORNE Y W. BAYLEY.

APPARATUSTOR AND PROOESS 0F LAYING PAVING MATERIAL.

APPLICATION FILED APR.5, 1909.

Patented May 16, 1911.

B SHEETSSHEET 6.

I/LI-T FIG.]6. {0L

IN VEN 10R WITNESSES: I may/64 A TTORNE Y W. BAYLEY. APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

APPLICATION FILED APR. 5, 1909.

992,538. 4 Patented May16,1911.

s SHEETS-SHEET 1.

I INVENTOR WW ATTORNEY W. BAYLEY. APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

APPLICATION FILED APR-5. 1909 Patented May 16, 1911.

8 SHEETSSHEET 8.

/ WITNESSESt INVENTOR Z i I ATTORNEY WILLIAM BAYLEY, OF SPRINGFIELD, OHIQ. I

APPARATUS FOR AND PROCESS OF LAYING PAVING MATERIAL.

Specification of Letters Patent.

Patented May 16, 1911'.

Application filed April 5, 1909. Serial No. 488,107.

To all whom it may concern:

Be it known that I, WILLIAM BAYLEY, a citizen of the United States, residing at Springfield, in the county'of Clark and State of Ohio, have invented certain new and useful Improvements in Apparatus for and Process of Laying Paving Material, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an apparatus for laying street or road paving material, as

paving brick, stone or composition blocks,

or similar material. Heretofore it has been the practice to lay street and other similar pavements solely by hand.

This invention is to displace the old method and to substitute therefor an apparatus by which this heretofore arduous and expensive work shall be done more expediblocks from or between the holding hopper to paving-position; means to advance the machine forward as the paving of one. or more rows of blocks is accomplished, and other means for leveling the grouting or other top dress of the foundation upon which the blocks are to be placed, so that this leveling shall proceed progressively as the material is wanted; the machine being self-contained, in the sense that it carries its-own motor for operating its several mechanisms. and for advancing. it as thework of laying the blocks proceeds. i

My invention, com'prehends modifications as would include the enumerated means or features with others, or with necessary adjuncts, as well as a machine having some or less than all of these fea-.'

tures, as I consider myself the first to dealso such.

vise a machine which will mechanically lay paving blocks of any character.

In the drawings Figure 1 is'a plan view of my apparatus generally,'with the tracks laid at the side of a road or street bed which is to be paved; Fig. 2, a detail rear elevation of the guide booms and rollers, with the track and adjacent portions of curb and gutter in section; Fig. 3 is a rear elevation of my apparatus, showing a street or roadway in transverse section, with the machine in position to work; Fig. 4, a similar rear elevation, on a larger scale, showing a portion of the apparatus, particularly the struts andties of the frame, the paving block receiver or feeder and the packing rollers; Fig. 5, a transverse vertical section on the line a a of Fig. 10, looking toward the front of the machine and showing particularly the adjustable plates that form the front wall of the paving block holding hopper, the gagerod for setting the blocks in the hopper in a manner to result in breaking joints in the pavement and t-he'master or main shaft, with its worm wheel and other features; Fig. 6, a similar transverse vertical section taken on the line b b of Fig. 11, also looking forward, and showing, on an enlar ed scale, particularly' the ejector'for ejecting the blocks from the holding hopper to pav-. ing-position, the master shaft, with its worm gear and eccentric devices, whereby the ejector is given motion; Fig. 7, another transverse vertical section onthe line 0 c of Fig. 11, looking forward, taking in a art of the width of the machine and showmg particularly the forward endof the frame, the striker or spreader for leveling the [grouting or top coating of thefoundation and its han ers, by which, it is sus-J pended from the ame; Fig. 8, an enlarged axial sectional view of a portion of the two] adjoining sections of the striker or spreader, showing the universal joint connecting the sections, the sprocket pinion and the hanger; Fig. 9, a detail sectional view of the un versal joint on the line (2 (Z of Fig. 8, show ing also the sprocket pinion in elevation;

Fig. 10, a longitudinal vertical section through the machine generally, taken on the line a e of Fig. 5, showing a pavingblock just ejected out over the paving bed, ready to drop, with the preceding forward step of the machine just ended, the forward motion of the striker or leveler just commencing, and the blocks just dropped onto the ejector; Fig. 11, a like section taken in the same plane as Fig. 10, but showing the machine with the forward motion of the striker or leveler completed, theejector withdrawn and the blocks settled'down on the bottom plate and the machine just ready to commence its forward movement bodily; Figs. 12 to 15 inclusive, vertical sectional views, in a longitudinal direction, in the same plane as Figs. 10 and 11, each showing the holding hopper, the ejector, the bottom plate of the machine, the adjacent blocks already laid and the striker or spreader, Fig. 12 showing the ejector ready to begin ejecting and the rotary striker or spreader just finished advanc'in Fig. 13 showing the lower row of blocks ust brought in contact with the previously laid row in the street, and the forward movement of the machine bodily just commencing, the striker or leveler being inactive; Fig. 14 showing the machine advanced about one-half its forward movement and the upper blocks commencing to drop to the ejector, the spreader or leveler being still inactive; Fig. 15 showing the ma chine with the forward movement finished, the ejector commencing to recede, the blocks just dropping onto the bed and the striker or leveler just commencin to advance to reach the heap of top be ding to be distributed; Fig. 16, a rear View, on an en larged scale, of a portion of the ejector; Fig. 17 a side elevation of the ejector; Fig. 18, a plan view, on an enlarged scale, of the machine generally, with one end broken off Fig. 19, a rear elevation and section on line a a Fig. 10, on an enlarged scale, with one end broken off, showing the machine adjusted to a street or road-bed with a curved cross-section; Fig. 20 a side elevation of the machine generally, ofFig. 1; Fig. 21, an edge view of one of the supporting wheels, with its spindle and attaching bracket; Fig. 22, a side elevation of the same parts; Fig. 23, a vertical longitudinal section of the machine, showing a modification, wherein the blocks are delivered from the receiver into held by cross-ties 4c, which are connected by a beam 5. These are in sections,'so that they can be readily taken up as the machine advances and the rear sections laid on ahead. To facilitate this the beams 5 are provided with wheels 6, on which they can be rolled along. These sections are staked down, say to the ground, and the rails are spiked to the cross-ties 1. The apparatus is supported by forward wheels 7 and rear wheels 8, which travel on these rails. The connection of the wheel spindles with the general frame is adjustable, so as to accommodate the machine to local conditions. Referring to Figs. 18 to 22, it. will be seen that the wheels 8 have a spindle provided with a plate 9, which fits between struts 16 of the general frame, and is held by bolts 11 passing through the holes in the plate and through slots 10 in thest-ruts 16. In this way the adjustment of the frame relatively to the wheel is effected. The wheels 7 are mounted on studs carried by the slotted plates 12, held by bolts 13 to the general frame. This affords adjustment at that point. This frame is composed of three trusses, one vertical and two inclined, secured together at chords 15 which lie face to face and are suitably connected, and consist of struts 14 and 16 and ties 17, see Fig. 3, as also ties 18, see Figs. 1 and 18. This resulting triangular frame is very strong, while not unduly heavy, andmay be made of metal or wood, the former preferred, say of angleiron structure. Horizontal channels 19 are secured at their forward ends to the lower struts 14 and at their intermediate portions to the struts 16 atthe point 20. The rear extensions-of the channels 19 support de pending plates 21, which are adjustable through the means of slots and bolts 22 and which carry the operators platform 23,

the rollers 24 for's'ettling the blocks after they are laid and the block chute or feeder 25, which latter is a transverse trough having its ends inclined upward, as se'e'n'in Fig. 3, so that as the paving blocks are fed into it by hand, they will gravitate inward until the whole chute or feeder is filled. I speak of it as a chute or feeder because it feeds the blocks to the points on the apparatus occupied by the operators, who are scattered along at the pointsv indicated by 26; see Figs.

'1 and 11. This chute or feeder is preferably provided with-a series of rollers 27 and 28. which operate to reduce the friction and make the blocks move more freely. The operators lift these blocks over into the holding hopper, composed of a trouglrlike struc ture extending across the machine immediately in front or near to the feeder. Tt consists of a rear wall 29, secured to the for ward ends of the plates 21, and of a forward wall 30, made in sections and each section modated by the machine. function of the bottom plate 32 of the ma? chine is to smooth the paving bed immedi' connected to one of the lower chords 15 by means of slots and bolts 31; see Figs. 5 and 19 particularly. By these means the wall 30 can be raised and lowered, being made in sections, as seen in Figs. 5' and 19, to substantially conform in position to the contour of the paving-bed in cross-section, say when the bed is flat,'as seen in Figs. 3 and 5, or curved, as in Fig. 19. The wall 29 of the holding hopper is adjusted along with the operators platform to conform to the paving-bed. The bottom plate 32 likewise extends across the machine and is capable of being raised or lowered bythe straps 33, to which it is attached and which in turn are adjustably connected by means of slots and bolts 34 to the lower rear chords '15; seeparticularly Figs. 5 and 19. manner the varying contours of'the paving beds, whether straight or curved, are accom- Incide'ntally theately before the blocks reach it. The rear portion of this plate is attached in the man- Y ner just stated. The forward edge is similarly secured by straps 35, adjustably secured to the lower struts 14 by bolts and slots 36; see Fig. 10. A guard-plate 37 extends along the front edge of the plate 32 to prevent the top layer from being splashed or thrown over on the plate, and a similar,

guard or dash 38 likewise protects the machinery behind it.

It will now be seen that the apparatus comprises a strong wide frame, which travels just over the paving-bed and carries the several operators on the platforms 23,

the block receiver and the block hopper, be-

sides the other mechanism now to be de-' scribed.

Referring to Figs. 5 and 19, it will be seen that there extends across the machinev a gage-rod 39, slidably mounted in brackets 40 secured to a convenient part of the frame and having adjustable collars 41, fastened by set-screws 42 to limit the movements of the rod. At suitable points the rod has gage fingers 43. By sliding the rod until the collars strike the brackets, on one side, the operators can tell, by observing the gage fin at certain places. Then when the next tier of blocks is to be laid, the blocks at the ends should start at a point inward from the In this" joints with i margins of the bed, to break the joints. To do this they must be so placed in the hopper.

To so place them in the hopper, a guide or gage is expedient. This is afforded by the v block-gage just described.

I will next refer to the means for ejecting.

the blocks from the hopper'back into paving position and which also acts to advance the machine a step forward aftera tier of blocks has reached paving position. This means consists of an ejector, which comprises a frame extending across the machine, preferably just forward of the hopper. It is made of transverseplates 44 and 45 and vertical arms 46, with connecting pieces-47 at intervals. The arms 46 are pivotally hung on studs 48, secured on plates 49 carried by the frame over the hopper. The frame is slotted as'seen at 50 and the plates are ad slip between them. At each end of each section it is connected with operating means,

as shown in Figs. 5, 10 and. 11. One form of.

such operating means, that shown, consists of an eccentric-rod 52, connected to the' Y '100 ejector and operated by the eccentrics 53 on the master shaft 54. These eccentrics are so set that they act to advance and withdraw the ejector, that is, all the sections, at the proper intervals, as hereinafter explained.

The function of the ejector is to force a tier of blocks from the bottom of the hopper and off of the bottom plate 32 of the machine, as

shown in Figs. 10 to 15, and to advance the 'machine forward by continued pressure on the blocks after they have come against those already laid, which act as a resistance, so

that the continued stroke of the ejector forces the machine forward one step. Then when the ejector is withdrawn,'that tier of blocks descends upon the bed and, when the ejector has moved far enough, as in Figs. 11 1 and 12, the several tiers of rows of blocks will settle down by gravity and bring another tier opposite the ejector.

I will now refer to the operating meansfor driving the master shaft and then to the "leveler-or spreader. The master, shaft 54 is mounted in suitable bearings on the channels 19, or other. part of the frame. It carries a worm gear 55, loose on the shaft, and a clutch 56, slidable on the shaft, but rotatable with it, which, through a lever 57, see Fig. 18,- is made to engage and disengage with erating the power and applying it to the master shaft and from it to the ejector, through the eccentrics 53 and their rods 52.

I will now refer. to the striker or spreader by which the toplayer of the paving bed is spread in advance of the machine. This device is composed ofseveral rotatable shafts 65, with wings or blades 66. The sections are interconnected by any approved type of universal joint, .as that shown in Figs. 8 and 9, so that the several sections will constitute one entire striker or spreader and so that it may be adjusted up or down at intervals across the machine to conform its outline to substantially that of the paving-bed in cross-section... The means for suspending the striker or spreader comprises hangers or links 67, in the lower ends of which the shaft 65 is journaled, while their upper ends are pivoted to the frame by bolts 68, see Figs. 7, 10, 11. These bolts are in slots 69, formed in the plates 70 which form the connection between the struts of the frame, near their forward meeting ends.

the hanger 67 can be r'aised and lowered.

By this means This description applies to the hanger at the outer endsI ofthe striker or spreader. The

connection of the intermediate hangers 71 with the supporting frame is by means of the shafts 76, which, like the bolts 68, may be adjusted vertically for setting the striker or spreader to conform substantially with the contour of the paving-bed. The foot of each of the several hangers forms a smoother 72, so as to act the same as the wing 66 at points to which the wings do not extend.-

The striker or spreader has two motions. One is arotary motion, to cause it to spread the advanced pile of material constituting the top coat of the paving-bed. The other is a bodily advancing movement, so that it will proceed farther and farther into the pile. These two motions are accomplished as follows :-One or more sprocket pinions 73 are provided on the striker or spreader, and sprocket chains 74 rotate them from sprocket wheels 75 mounted on the shaft 76. A sprocket pinion 77 connected with the sprocket wheel 75, receives rotary motion from a sprocket wheel 7 8 mounted on the master shaft 54, through a sprocket chain 79. In this manner rotary motion is given the striker or spreader. The advancing movement is given it by means of eccentrics 80 secured to the master shaft, and operating eccentric-rods 81, which are connected to the hangers 67 These eccentric-rods are adjustable in length, by means of a screwthreaded section 82.

It is to be noted that the throw of the eccentrics 53 and 80 is such thatwhen the eccentrics 53 are operating the ejector rearwardly, the eccentrics 80 do not advance the striker or spreader, but that, when th' rear-' ward movement of the ejector ends and the machine has been bodily advanced forward one step, then the eccentrics 8O commence to advance the striker or spreader forward and continue to advance it until. the ejector begins to force another row of blocks out of the hopper, at which time the advancing movement ofthe striker or spreader ceases, though it continues to rotate. -In this way power is economized, as it is alternately applied first to operating the ejector, to force the blocks from the hopper into pavingposition, and advance the machine, and then, after that, applied to advancing the striker or spreader. This is an important consideration in practice, although, of course, my invention is not, limited to the inclusion of this order of the use of the power.

"Referring to the modification shown in Figs. 23 and 24, it .will be seen that I have added two hoppers, one, 83, for containing a solution of cement and water, to make a better bed for the paving blocks to rest upon, and theother, 84, to contain sand, which will be discharged upon the top of the blocks after they are laid, for the usual purpose of working into the joints to solidify the work. The hopper 83 'extends, at its discharge orifice 85, slightly below the bottom plate 32 of themachine, so as to give room for the liquid coat to work back under it. A reciprocating agitating rod 86 is operated by a rock-shaft 87, mounted on the main frame and receiving motion from a cam, say 80. In the hopper 85 is a rotary agitator and broken flight screw 'conveyer 88, operated by a sprocket wheel 89, sprocket-chain 90 and sprocket pinion 91, mounted on the master shaft 54. Another feature in this modified machine is means for automatically moving the paving blocks from the feeding chute 25 into the block hopper, instead of performing that function by hand. I term this device a block-mover or pusher. It is designated at 92 and consists of an arm pivoted to a plate 97*, one secured to each channel 19 of the machine, and having at its lower end a right-angled plate 93 to form a sort of pocket to fit over the block in pushing it/ It also carries a shield 94, which stands across the chute and prevents incoming blocks from passing into the plane of movement of the pusher and mterfering with its return to normal position. The block pusher is operated in any suitable manner, as by eccentrics 95 mounted on the master shaft'and operating rods 96. These eccentrics are set to properly time the action of the block pushers.

lVhile I have shown means for pushing the blocks into position it will be obvious that they might be otherwise placed in position and still be within the limits of my invention.

In Fig. 2% I have shown the block pusher in two positions, the inactive position in full lines and the advanced position, havingjust pushed a block intov the hopper, in dotted lines. One or more of these additional features may be incorporated in the machine.

Referring now to the general operation of my apparatus, it will be seen and understood that, as the paving blocks work down the chute 25, either to the operators or to-the automatic block pusher 92, they are delivered over into the block hopper, one tier upon another, as many as may be desired. Then the ejector moves into contact with the lower tier of blocks and forces them rearward and progressively, as illustrated in Figs. 1214. The continued movement of the ejector after this tier of blocks has reached its limit, acts to; advance the machine bodily one step. This action of the ejector forces the blocks firmly into paving position, whence they settle down, being driven to their final level by the oncoming pressure rollers 24, which level all the blocks alike. Then when the ejector has about reached its rearward limit, the striker or spreader in turn advances forward, the meantime rotating, and levels or'spreads another stretch of material used in the top coat of the paving-bed. This material may be sand or it may be a special grouting, composed, for instance. of one part cement, three of sand and fivc of broken stone, mixed with water. It is feasible to use this grouting with this machine; And in case of the use of the hopper 83, the top coat may be supplied with the liquid cement, whether such coat be sand or this grouting. By the time the striker or spreader shall have sufficiently leveled a portion of the top coat, the ejector will resume its rearward movement and repeat the operation above described. It will be observed too that as the ejector withdraws from the block hopper, the tiers of blocks settle down .until the lower tier reaches the base .plate 32 of the machine. Thus the paving operation is continued and is automatic, with the exception of feeding the blocks from the chute into the hopper by hand, when men are employed, or is wholly automatic, when the blocks are pushed by the automatic pusher from the chute into the hopper. And it will be noted that at one and the same time a course of blocks is laid across the entire street or roadway and that there is no lost timein the operations of the machine, so that its capacity is very great and it will lay a long stretch of blocks in the course of a day.

I have. used the terms chute or feeding chute as applied to the means for conducting the block across the machine into convenient proximity to the hopper; have used the term hopper or block hopper in referring to the receptacle or part of the machine where they are received and held prior to being ejected into paving-position; have used the term ejector as applied to the means for moving the blocks into paving position and to advancing the machine forward; and have used the term striker or spreader as applied to the device for leveling the top coat in advance of the machine. But it is to be understood that any other devices, difl'ering from these so widely as to bear other names, are nevertheless within my invention. Again, it is to be understood that any suitable means may be utilized for advanc-' ing the machine forward, either cont-inn ously or step by step.

I conceive myself to be the first todevise a machine whereby this important result of paving with blocks may be accomplished mechanically, as distinguished from the old hand-laying, and wish to be understood .as claiming such apparatus in broad terms.

Referring to Figs. 1 and 2, it will be seen that I pivotally connect guiding booms 97 and 98 to the main frame, say at the point 99, and also connect these booms togetherl at the point 100, where they are equipped with three wheels 101, two of which run on the sides of the rail and the other on the top. This is a guiding device and in practice operates to keep the machine from shifting back and forth ateither end, as also to properly guide it along acurve in the tracks,

should there be one. This is a very useful,

though not an indispensable adjunct.

The terms blocks and paving blocks are intended to cover any material the machine is capable of handling for paving purposes.

lVith modifications, asphalt en masce may be laid or spread by this apparatus, but an apparatus specially organized for paving,

with that material will form the subjectof a separate application.

The grout may be mixed and dropped'in front of the apparatus in any desired manner.

Having thus fully described my invention,

What I claim as new and desire to secure by I 7 Letters Patent, is I 1. In a paving apparatus, a bridge-like main frame supportable at the sides of the paving-bed and movable relatively to and over the paving-bed, means carried by said frame to receive and hold the paving blocks,

and positive means to cause the blocks to move thence into paving position.

2. In a paving apparatus,a bridge'like.

' blocks, means to cause the blocks to move thence into paving position and to advance the apparatus for each time the blocks reach paving position, and othermeans to spread the top coat of the paving-bed in advance of the apparatus.

4. In a paving apparatus, a bridge-like main frame supportable at the sides ofthe paving-bed and movable relatively to and over the paving-bed, means carried by said frame to receive and hold the paving blocks, means to cause the blocks to move thence into paving position, means to advance the apparatus each time the blocks reach paving position, means to spread the top coat of the paving-bed in advance of the apparatus, and means to pack or press down the blocks as the machine advances.

5. In a paving apparatus, a bridge-like main frame supportable at the sides of the paving-bed and movable relatively to and. over the paving-bed, means carried by said frame to receive and hold the paving blocks, means to cause the blocks to move thence into paving position, means to advance the apparatus each time the blocks reach paving position, means to spread the top coat of the paving-bed in advance of the apparatus, and power means to actuate the forward moving means and the spreading means at different times.

6. In a paving apparatus, a bridge-like main frame supportable at the sides of the paving-bed and movable relatively to and over the paving-bed, block-receiving and holding means, block-moving means actin to move the blocks into paving position and further acting against the blocks to advance the apparatus.

7. In a paving apparatus, abridge-like main frame supportable at the sides of the paving-bed and movable relatively to and over the paving-bed, means to receive and hold paving blocks in a paving-line, and means to cause a line of blocks to move thence into paving position.

8. In a paving apparatus, a main frame eeaeea supportable and movable relatively to the paving-bed, means to deliver a line of paving blocks on said apparatus, means to re ceive and hold said blocks in paving line, and means to cause said line. of blocks to move thence into paving position."

9. In a paving apparatus, a main frame supportable and movable relatively to a pavlng-bed, means to deliver a line of paving blocks on said apparatus, means to receive andhold said blocks in paving-line, means to cause said line of blocks to move thence into paving position, said means acting also to advance the machine one step, and other means for spreading the top coat of the paving-bed in advance of the apparatus.

- 0. In a paving apparatus, a mainframe supportable and movable irelatively to a paving-bed, a block-chute to receive and deliver the paving blocks in a line along the apparatus, a block-hopper to receive and hold the blocks in pavingline, and an ejector to move the blocks thence into paving position.

11. In a paving apparatus, a main frame supportable and movable relatively to a paving-bed, a block-chute to receive and deliver the blocks in a line along the apparatus, a block hopper to receive and hold the blocks in paving-line across the apparatus,

an ejector operating transversely through the hopper to move the blocks thence into paving position. i

12. In a paving apparatus, a main frame supportable and .movable relatively to a paving-bed, a block-chute to receive and deliverthe blocks in a line across the appa-. ratus, a block-hopper adjacent to the chute to receive and hold the blocks in paving line,

across theapparatus, an ejector operating transversely through the hopper to move a line of blocks thence into paving-position against a line of blocks previously laid, and

acting by continued pressure against the" blocks to advance the apparatus a step.

13. In a paving apparatus, a main frame supportable and movable relatively to a paving bed, a block-chute to receive and deliver the blocks in a transverse line on the apparatus, a block-hopper to receive and hold the blocks in paving line across the apparatus, an ejector operating transversely through the hopper to move a line of blocks thence into paving position, and acting by continued pressure against the blocks to ad vance the machine a step, a spreader in advance ofthe machine to spread the top coat.

a power means to operate the ejector and spreader alternately.

14:. In a paving apparatus, a main frame supportable and movable over the pavingbed, a transverse block-chute and a transverse block-hopper, means behind the hopper to press down the blocks, a pivoted swinging ejector adapted to project transversely through the bottom of the hopper and engage a row of blocks to move them thence into paving-position, power means to operate the ejector, first to so move the blocks and then by continued pressure to advance the apparatus a step, and a spreader in advance of the hopper adapted to rotate and to advance forwardly, and connections between the power means and the spreader to advance it into action when the ejector recedesout of action.

15. In a paving apparatus, a main frame supportable and movable over a pavingbed, an ejector, a positively actuated spreader, and power means connected with said ejector and said spreader to actuate the ejector to advance the apparatus a step and to advance the spreader each time the apparatus is so advanced.

16. In a paving apparatus, a main frame, block laying devices supported thereby, and a spreader supported in front of said blocklaying devices and adapted toengage the material forming the top layer of the paving bed and spread the same in advance 0 said block laying devices.

17. In a paving'apparatus, a main frame, block-laying devices supported thereby, and a vertically adjustable spreadersupported in front of said block-laying devices.

18. In a paving apparatus, a main frame supportable and movable over a paving-bed, an ejector adapted to be moved against a fixed object, a spreader adapted to be advanced, and power means connected up with the ejector and the spreader and arranged to alternately operate them to advance the machine by the ejector and to advance the spreader afterward.

19. In a paving apparatus, a main frame supportable and movable over a paving-bed, an ejector pivoted at one end and adapted at the other to be moved against the paving blocks, to set them firmly in paving position and by continued pressure to advance the machine forward, a swinging spreader car ried by the frame, power means. to rotate the spreader and to alternately move the ejector as stated and then to advance the spreader.

20. In a paving apparatus, a main frame, a motor, a master shaft operated thereby, eccentrics on said shaft and having eccentric-rods which the eccentrics alternately thrust, an ejector connected to one or more of said rods and adapted to be moved thereby, and a spreader connected to other of said rods and adapted to be advanced thereby, the eccentrics being set to alternately move and advance the ejector and spreader.

21. In a paving apparatus, a main frame, a motor, and driving mechanism, block-laying devices connected with said frame, a swinging spreader connected with said frame and adapted to be advanced relatively to said block-laying devices and to engage the material forming the top layer of the paving-bed in front of said block-laying devices and spread the same, and a connection between said spreader and the driving mechanism to advance the spreader.

22. In a paving apparatus, a main frame, a motor and driving mechanism, a swinging I and rotatable spreader carried by the frame,

a connection between the spreader and driving mechanism to rotate the spreader, and another connection between them to advance the spreader.

23. In a paving apparatus, a main frame,

a block-hopper, adapted to receive one or more tiers of lines of blocks, an ejector adapted to ejeet the blocks, a line at a time, from the hopper, thence intopaving position, and means to operate the ejector.

241-. In a paving apparatus, a main frame,

a block-hopper adapted to receive one or,

more tiers of lines of blocks, an ejector adapted to pass acrossthe bottom of the hopper to eject therefrom a line of blocks and to receive thereon the next tier of blocks, a bottom plate on the apparatus to receive the bottom tier of blocks when the ejector recedes, and means to operate the ejector.

25. In a paving apparatus, a block-hopper adapted to receive tiers of lines of blocks, a block-chute adapted to deliver the blocks near to the hopper, a platform for one or more operators who fill the hopper from the chute, pressure or packing rolls to solidify the set blocks, and an ejector adapted to eject a line of blocks at a time from the hopper into paving position, and means to operate swinging ejector made in sections and having the pivot supports adjust-able .relatively to the paving-bed for the purpose described.

29. In a paving apparatus, a main frame, supporting wheels therefor, removable tracks adapted to be located near the margins of the road-bed to support the apparatus over and above said bed and block-laying devices carried by said main frame.

30. In a paving apparatus, a main frame adapted to bridge or span the paving-bed and block-laying devices carried by said main frame and havlng means to support 1t. 81. In a paving apparatus, a main frame adapted to bridge or span a paving-bed and 5 means to support said frame beyond the margins of said bed and block-laying devices carried by said main frame.

32. In a paving apparatus, a main frame, a track, supports for said main framearranged to travel on said track, and a steering or guiding device connected with the frame and engaging the track to control the guiding of the frame.

33. In a paving apparatus, a main frame and a track therefor, a guiding devicecomposed of booms extending rearwardly and obliquely, and having rollers which travel against a rail of. the track.

34. In a paving apparatus, a main frame, a removable track therefor, and a steering device composed of booms extending rearwardly and obliquely and having rollers which engage a rail of the track, one of the booms being longitudinally adjustable to adjust the steering of the frame.

35. In a paving apparatus, a bridge-like main frame arranged to span a paving-bed, means for laying the blocks and for advancing the machine as the paving progresses, a motor mounted on said frame, and means to transmit motion from said motor to active parts of the apparatus, whereby the apparatus is self-contained and continuous in operation.

86. In a paving, apparatus, a main frame consisting of inclined struts, an ejector supported from the struts, vertical struts, horizontal chords, a holding hopper supported therefrom, and diagonal ties adapting'it to 40 bridge or span a paving-bed, and means to movably support said frame.

37. In a paving apparatus, a main frame adapted to bridge or span the paving bed, supports therefor near the margins ofthe bed, a transverse block-hopper, a transverse ejector and transverse pressure rolls each vertically adjustable relatively to the bed.

38. In a paving apparatus, a main frame, a transverse block-chute having inclined terminals to cause the blocks to gravitate across the apparatus.

39. In a paving apparatus, a main frame, a block-hopper, a blockchute, and a block pusher, and means to operate the pusher to cause it to transfer the blocks from v the chute to the hopper.

40. In a paving apparatus, a main frame, a block-hopper, a block-chute, a swinging block-pusher having wings, and means to operate the pusher to transfer the blocks from the chute to the hopper, the wings being adapted to keep other blocks out of the plane of the pusher during its movements.

, 41. In a paving apparatus, a main frame,

scenes 4 a liquid hopper connected thereto whereby a paving bed may be provided, and means to control the discharge orifice thereof, a holding hopper, and an ejector in the rear of such liquid hopper to deliver the blocks son such bed.

' 42. In a paving apparatus,.a main frame and a sand hopper, with, means to control the discharge of sand therefrom, and a hold ing hopper and an ejector in advance thereof, to deliver blocks to be sanded.

48. In a paving apparatus, a main frame, blocklaying devices carried thereby a liquid hopper in advance of the paving point, and a sand hopper in the rear of said point, whereby the bed may be liquefied and the laid blocks may be sanded.

.44. In a paving apparatus, a main frame consisting of a substantially vertical and other inclined trusses to constitute a triangular structure in cross-section.

45. In a paving apparatus, a block hopper and a gage to indicate the position in which to place the blocks in the hopper to cause the blocks to break oint when laid.

46. In a paving apparatus, a block hopper extending from side to side oflthe apparatus, and a gage-rod likewise extending and having gage fingers adapted, by adjusting the rod to indicate the place in the hopper at which to place certain of the blocks, so that all of the row of blocks will break joints with a previous row of blocks.

47. In a paving apparatus, a bridge-like main frame having means to suspend it over and allow it to move along a paving-bed,

means carried by said frame and conforming substantially to the transverse line of the bed to receive and hold the paving blocks in transverse series, and other means also conforming substantially to the transverse line of the paving-bed to cause the blocks to move into paving position, said receiving and holding means and said moving means being held over, above and within the lateral limits of the paving-bed.

48. In a paving apparatus, a bridge-like mainframe having means to suspend it over and allow it to move along a paving-bed, means carried by said frame and conforming substantially to the transverse line of the bed to receive and hold the paving blocks in transverse series, and other means also conforming substantially to the transverse line of the paving-bed to cause the blocks to move into paving position and to advance the machine, said holding means and said moving means being held over, above and within the lateral limits of the paving-bed, and means to supply a line of paving blocks for delivery to said receiving and holding means.

49. In a paving apparatus, supportable and movable relatively to a paving bed, a

smoothing bottom, a spreader preceding said smoothing bottom, and block laying devices following said smoothing bottom.

50. In a paving apparatus, supportable and movable relatively to a paving bed, a smoothing bottom, a spreader preceding said smoothing bottom, block laying devices following said smoothing bottom, and block setting devices.

51. In a paving apparatus, supportable and movable relatively to a paving bed, a smoothing bottom, block laying devices and block setting devices following said smoothing bottom.

,52. In a paving apparatus, supportable 15 and movable relatively to a paving bed, a smoothing bottom, and block laying devices following said smoothing bottom.

In testimony whereof, I aflix my signature in presence of two Witnesses.

WILLIAM BAYLEY. Witnesses:

E. O. HAGAN, F. W. SCHAEFER. 

